摘要：本文讨论了几种方式来增加电流， MAX44000接近传感器可以通过红外LED驱动。这些方法的范围从非常简单到相当复杂的，并允许用户从接近传感器检测对象更远。Maxim > Design Support > App Notes > Amplifier and Comparator Circuits > APP 5087 Maxim > Design Support > App Notes > Sensors > APP 5087 Keywords: proximity, als, optical, infrared, sensors, tablets, laptops, notebooks, human presence detection, LED Jul 25, 2011 APPLICATION NOTE 5087 Reach Farther with Your Proximity Sensor By: Ilya Veygman, Strategic Applications Engineer Abstract: This article discusses several ways to increase the current that the MAX44000 proximity sensor can drive through an infrared LED. These methods range from very simple to fairly complex, and allow the user to detect objects much farther from the proximity sensor. Background The MAX4400……